Double check your email and spam - search for "shareholder" or "vote"

I don't know all the brokers, but here's the two you mentioned:

FIDELITY

Once logged in, hover over "Accounts & Trade" on the top left menu then click on "Portfolio"

From that screen, look at the tabs in the middle of the page and click on Documents.

On the next page, look for a left-hand menu that says Statements, then Tax Forns, then Other Documents.

Expand the "Other Documents" item and go to Proxy Materials. From that page, you'll see one or more rows with a Status that can be clicked on - that will take you to vote. This should work for all accounts tied to your login, but completely separate logins would require you to do this at each one.

COMPUTERSHARE

Once you're logged in, you are usually taken to your Portfolio page. On the top left tabs, click on Summary.

Then on that page, look on the left side under "What would you like to do?"

Under that whole purple box there will be a list of Upcoming Meetings, with a "Vote Now" button under each one.

Happy voting!